I'd say her standing out has more to do with how the character was written. I'm in no way saying her performance was bad. It was good and she shows potential, but Leo's was just a few notches above.I'm not too sure. I think Adams and Leo we're on the same level when it comes to quality of performance. Also, Steinfeld was able to stand out in a film which featured to big name actors(Matt Damon and Jeff Bridges). That has to count for something.